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Check the ground wire. If you have a bad ground, you will not have any speaker output. The ground should be solidly connected to the vehicle chassis in a paint-free location. Check the live power wire as well, it should be connected directly to the battery. Then check the speaker leads to the amp. They should not be in contact with the vehicle chassis, or (at the input slots on the amp) with each other.
Hook up the MRP-M350 to one 4-ohm sub, and you get 200 watts RMS;
connect a second 4-ohm subwoofer and the power output increases to 350
watts! All that juice means that your subs won't just be loud, they'll
sound clean and thumping.
This happens when the battery is completely Flat.. In order for it to charge up it needs to be left alone to charge for at least 8 hours.. It is also possible that the battery has become so flat that it simply cannot be recharged via the adapter. In which case you will need a new battery, you would know after 8 hours...
its up to you the remote wire is just another power wire.....the remote wire can be by passed but every time you turn off your car you will need to unhook the 12v amp power wire from your cars battery (if you decide to do it this way)..........or you can hook up the blue wire from the back of your CD/DVD unit what ever you are using and every time your stereo turns off your amp will too..........
hope this has helped
Sounds like you have the Remote turn on hooked to constant 12V instead of a switched power.
The Blue/White wire off the module should go directly to the amplifier remote terminal.
If this has a constant 12V when the key is off, the module is defective and needs to be repaired/returned.